A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Hagop V Karpanian, M.D. with clinicians in the same registry specialty: Anesthesiology.

THOUSAND OAKS, CA · Exact areaEdit location

2024 published service data · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Dustin Jon Lloyd, DO

Anesthesiology · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Insertion of artery tube for blood sampling or infusion through skin (36620)
  • Anesthesia for x-ray on artery of brain, heart, or chest (01926)
  • Anesthesia for x-ray or radiation therapy (01922)
86%Service-mix similarityView profile →

Michael H. Goldberg, M.D.

Anesthesiology · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for x-ray or radiation therapy (01922)
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for procedure on small and large bowel using an endoscope (00813)
67%Service-mix similarityView profile →

Philip Ostermann

Anesthesiology · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for total hip replacement (01214)
  • Anesthesia for procedure on small and large bowel using an endoscope (00813)
58%Service-mix similarityView profile →

Liem Lechau, M.D.

Anesthesiology · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for x-ray or radiation therapy (01922)
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for procedure on small and large bowel using an endoscope (00813)
51%Service-mix similarityView profile →

Amber Lea Coleman, M.D.

Anesthesiology · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for procedure on small and large bowel using an endoscope (00813)
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for exam of colon using an endoscope (00812)
38%Service-mix similarityView profile →

Scott D. Picker, M.D.

Anesthesiology · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Anesthesia for x-ray or radiation therapy (01922)
  • Anesthesia for procedure for total knee joint replacement (01402)
  • Anesthesia for procedure on small and large bowel using an endoscope (00813)
34%Service-mix similarityView profile →

Erin Mcnamara, MD

Anesthesiology · Thousand Oaks, CA

Shared published services
2 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
  • Anesthesia for procedure to assess heart electrical activity (00537)
31%Service-mix similarityView profile →

Robert D. Watson, M.D.

Anesthesiology · Thousand Oaks, CA

Shared published services
1 shared services · view billing descriptions
  • Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)
20%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.